KR101517791B1 - Over heat alarm device of temperature controller - Google Patents

Over heat alarm device of temperature controller Download PDF

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KR101517791B1
KR101517791B1 KR1020150012444A KR20150012444A KR101517791B1 KR 101517791 B1 KR101517791 B1 KR 101517791B1 KR 1020150012444 A KR1020150012444 A KR 1020150012444A KR 20150012444 A KR20150012444 A KR 20150012444A KR 101517791 B1 KR101517791 B1 KR 101517791B1
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temperature
sensor
controller
temperature controller
contact point
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KR1020150012444A
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Korean (ko)
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홍기주
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(주) 엘케이랩코리아
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L7/00—Heating or cooling apparatus; Heat insulating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/18—Means for temperature control

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Abstract

The present invention relates to an over-temperature alarm device of a temperature controller for a physico-chemical experimental equipment, and more specifically, to an over-temperature alarm device of a temperature controller for a physico-chemical experimental equipment, comprising a thermocouple sensor installed in the experimental space of physic-chemical experimental equipment; and a lead line of the thermocouple sensor connected to a contact point on a PCB substrate within a temperature controller, wherein the temperature controller includes: a contact point temperature sensor for sensing the temperature of the contact point; a sensor voltage detection unit for detecting the sensor voltage of a thermocouple sensor; a sensor temperature computing unit for calculating the sensor temperature from the detected sensor voltage in the sensor voltage detection unit and summing the sensor temperature and the temperature of the contact point sensed by the contact point temperature sensor to compute the actual sensor temperature; and a control unit for determining that the inside of the temperature controller is in an over-temperature state if the temperature of the contact point sensed by the contact point temperature sensor is more than or equal to a predetermined value, and implementing alarm operation. Thus, the present invention uses the thermocouple sensor, as a means for detecting the temperature within the experimental space of the physic-chemical experimental equipment, and a contact point temperature sensor for sensing the temperature of the contact point of the thermocouple sensor, thereby preventing damage due to over-temperature of a temperature controller by measuring automatically the temperature in the temperature controller and implementing alarm operations when the temperature controller is in an over-temperature state, and eliminating the need for installing an additional temperature sensor within the temperature controller.

Description

이화학실험장치의 온도콘트롤러 과온 경보장치{Over heat alarm device of temperature controller}TECHNICAL FIELD [0001] The present invention relates to a temperature control device,

본 발명은 이화학실험장치의 온도콘트롤러 과온 경보장치에 관한 것으로서, 더욱 상세하게는 이화학실험장치 내의 실험공간에 써모커플센서를 설치하고, 써모커플센서의 리드선을 온도콘트롤러 내부의 PCB기판 접점에 연결하며, 온도콘트롤러에는 접점의 온도를 감지하는 접점온도센서와, 써모커플센서의 센서전압을 검출하는 센서전압검출부와, 센서전압검출부에서 검출된 센서전압을 센서온도로 산출 한 후 접점온도센서에서 감지된 접점온도와 센서온도를 합산하여 실제센서온도를 연산하는 센서온도연산부와, 접점온도센서에서 감지된 접점온도가 기준치 이상이면 온도콘트롤러 내부가 과온상태인것으로 판단하고 경보동작을 실행하는 제어부를 설치하여 구성하므로서, 이화학실험장치의 실험공간 온도를 감지하는 수단으로 써모커플센서를 이용하면서 써모커플센서의 접점온도를 감지하는 접점온도센서를 이용하여 온도콘트롤러 내부의 온도까지 자동으로 측정하여 온도콘트롤러가 과온 상태일때 경보하여 온도콘트롤러의 과온에 의한 파손을 예방할 수 있음은 물론 별도의 온도감지센서를 온도콘트롤러 내부에 더 설치하지 않아도 되도록 한 이화학실험장치의 온도콘트롤러 과온 경보장치에 관한 것이다.
More particularly, the thermocouple sensor is installed in an experimental space of a physicochemical experiment apparatus, the lead of the thermocouple sensor is connected to a PCB substrate contact point inside the temperature controller, A sensor voltage detecting unit for detecting a sensor voltage of the thermocouple sensor, a sensor voltage detecting unit for calculating a sensor voltage detected by the sensor voltage detecting unit to a sensor temperature, A sensor temperature arithmetic unit for calculating an actual sensor temperature by summing the contact temperature and the sensor temperature; and a control unit for determining that the inside of the temperature controller is in an overtemperature state and performing an alarm operation if the contact temperature sensed by the contact temperature sensor is higher than a reference value The thermocouple sensor is used as a means for sensing the temperature of the experimental space of the physics laboratory apparatus It is possible to automatically measure the temperature inside the temperature controller by using the contact temperature sensor which detects the contact temperature of the thermocouple sensor while using it, and to prevent the temperature controller from being damaged by the overheat when the temperature controller is in an overtemperature, And a temperature controller over temperature warning device of a physics laboratory device in which a temperature sensor is not required to be installed inside the temperature controller.

이화학실험장치라 함은 미생물의 배양, 화학물질의 특성분석과 같은 다양한 실험을 위한 장치를 말한다.Physicochemical experiment equipment refers to devices for various experiments such as culture of microorganisms and characterization of chemical substances.

이러한 이화학실험장치에는 실험공간 내부의 온도를 설정온도로 높여주거나 낮춰주기 위한 온도콘트롤러가 설치되고 있다.The physicochemical experiment equipment is equipped with a temperature controller for raising or lowering the temperature inside the experimental space to the set temperature.

도 1 은 종래의 온도콘트롤러를 도시한 것으로서, 1 shows a conventional temperature controller,

이화학실험장치(1)의 실험공간에 설치되어 실험공간의 온도를 감지하는 온도센서(2)와;A temperature sensor 2 installed in an experimental space of the laboratory 1 for sensing the temperature of the laboratory space;

이화학실험장치(1) 내부에 설치되고, 온도센서(2)에서 감지된 온도정보에 따라 실험공간 내부의 온도가 적정상태인지 아니면 과온상태인지를 판단하고, 그 판단결과에 따라 히터(6)를 제어하기 위한 제어신호를 출력하는 온도콘트롤러(3)와;The temperature sensor 2 is installed in the physicochemical experiment apparatus 1 and judges whether the temperature inside the laboratory space is in an appropriate state or an over-temperature state according to the temperature information sensed by the temperature sensor 2, A temperature controller 3 for outputting a control signal for controlling the temperature;

온도센서(2)에서 감지된 실험공간 내 온도상태를 표시하는 표시부(4)와;A display section (4) for displaying a temperature state in an experimental space sensed by the temperature sensor (2);

설정온도를 입력하기 위한 입력부(5)와;An input unit 5 for inputting a set temperature;

온도콘트롤러(3)의 제어신호에 따라 발열동작하여 실험공간을 가열하는 히터(6)로 구성된다.And a heater 6 which heats the space according to the control signal of the temperature controller 3 to heat the space.

이와같이 구성되는 종래 온도콘트롤러는 작업자가 입력부(5)를 조작하여 설정한 온도가 유지되도록 온도콘트롤러(3)가 히터(6)를 제어함에 따라 실험공간 온도가 설정온도로 유지되며, 실시간으로 온도센서(2)가 실험공간 온도를 감지하여 온도콘트롤러(3)에 출력함에 따라 온도콘트롤러(3)는 실험공간 내부가 설정온도를 유지하도록 제어하게 되는 것이다.In the conventional temperature controller configured as described above, the temperature of the experimental space is maintained at the set temperature as the temperature controller 3 controls the heater 6 so that the temperature set by the operator by operating the input unit 5 is maintained, The temperature controller 3 senses the experimental space temperature and outputs it to the temperature controller 3, so that the temperature controller 3 controls the inside of the experimental space to maintain the set temperature.

그러나, 종래기술은 실험공간 내 온도가 설정온도로 유지되도록 하기 위한 것이기 때문에 온도콘트롤러 자체의 온도가 과온상태로 온도상승하는지를 감지하지 못하는 문제점이 발생하고 있으며, 이로인해 온도콘트롤러가 과열되면서 파손되어 고가의 이화학실험장치가 고장나는 현상이 빈번하게 발생하고 있었다.However, in the prior art, since the temperature in the test space is maintained at the set temperature, there is a problem that the temperature of the temperature controller itself is not detected as the temperature rises to the over-temperature state. As a result, the temperature controller is overheated, Of the physicochemical experiment apparatus was frequently occurred.

즉, 온도콘트롤러는 실험공간의 온도를 제어하는 장비이기 때문에 이화학실험장치 내부에서 실험공간에 근접하게 설치될 수 밖에 없으며, 이로인해 실험공간이 가열될때 온도콘트롤러 자체도 가열되는 것이다.In other words, since the temperature controller is a device for controlling the temperature of the experimental space, it is forced to be installed close to the experimental space inside the physics laboratory device. Therefore, when the experimental space is heated, the temperature controller itself is also heated.

따라서, 온도콘트롤러의 과온을 감지하여 과온이 감지되는 경보하는 경보장치가 필요하게되는데, 이를 위해서는 온도콘트롤러 자체의 온도를 감지하는 별도의 온도센서를 더 설치해야만 하는 문제점이 발생하고 있었다.
Accordingly, a warning device for alarming the over-temperature by sensing the over-temperature of the temperature controller is required. To this end, a separate temperature sensor for sensing the temperature of the temperature controller itself has been required to be installed.

따라서, 상기 문제점을 해결하기 위한 본 발명은 이화학실험장치 내의 실험공간에 써모커플센서를 설치하고, 써모커플센서의 리드선을 온도콘트롤러 내부의 PCB기판 접점에 연결하며, 온도콘트롤러에는 접점의 온도를 감지하는 접점온도센서와, 써모커플센서의 센서전압을 검출하는 센서전압검출부와, 센서전압검출부에서 검출된 센서전압을 센서온도로 산출 한 후 접점온도센서에서 감지된 접점온도와 센서온도를 합산하여 실제센서온도를 연산하는 센서온도연산부와, 접점온도센서에서 감지된 접점온도가 기준치 이상이면 온도콘트롤러 내부가 과온상태인것으로 판단하고 경보동작을 실행하는 제어부를 설치하여 구성하므로서, 이화학실험장치의 실험공간 온도를 감지하는 수단으로 써모커플센서를 이용하면서 써모커플센서의 접점온도를 감지하는 접점온도센서를 이용하여 온도콘트롤러 내부의 온도까지 자동으로 측정하여 온도콘트롤러가 과온 상태일때 경보하여 온도콘트롤러의 과온에 의한 파손을 예방할 수 있음은 물론 별도의 온도감지센서를 온도콘트롤러 내부에 더 설치하지 않아도 되도록 한 이화학실험장치의 온도콘트롤러 과온 경보장치를 제공함을 목적으로 한다.
In order to solve the above problems, the present invention is characterized in that a thermocouple sensor is installed in an experimental space in a physics laboratory device, a lead wire of the thermocouple sensor is connected to a PCB substrate contact point inside the temperature controller, A sensor voltage detecting unit for detecting a sensor voltage of the thermocouple sensor; a sensor voltage detecting unit for calculating a sensor voltage detected by the sensor voltage detecting unit to a sensor temperature, and then summing the contact temperature and the sensor temperature sensed by the contact temperature sensor, And a control unit for determining that the inside of the temperature controller is in an overtemperature state and performing an alarm operation if the contact temperature sensed by the contact temperature sensor is higher than a reference value, Detects the temperature of the thermocouple sensor's contact point while using the thermocouple sensor as a means of sensing the temperature. It automatically detects the temperature inside the temperature controller by using the contact temperature sensor and alarms when the temperature controller is in the overtemperature to prevent damage due to the overheating of the temperature controller. In addition, a separate temperature sensor is installed inside the temperature controller Temperature controller of a physicochemical experiment apparatus which does not require the use of a temperature sensor.

상기 목적달성을 위한 본 발명은,According to an aspect of the present invention,

이화학실험장치(1) 내의 실험공간에 써모커플센서(10)를 설치하고, 써모커플센서(10)의 리드선(11)을 온도콘트롤러(20) 내부의 PCB기판 접점(21)에 연결하며,The thermocouple sensor 10 is installed in the laboratory space of the physicochemical experiment apparatus 1 and the lead wire 11 of the thermocouple sensor 10 is connected to the PCB substrate contact 21 inside the temperature controller 20,

온도콘트롤러(20)에는 In the temperature controller 20,

접점(21)의 온도를 감지하는 접점온도센서(23)와, A contact temperature sensor 23 for sensing the temperature of the contact 21,

써모커플센서(10)의 센서전압을 검출하는 센서전압검출부(22)와, A sensor voltage detecting section 22 for detecting the sensor voltage of the thermocouple sensor 10,

센서전압검출부(22)에서 검출된 센서전압을 센서온도로 산출 한 후 접점온도센서(23)에서 감지된 접점온도와 센서온도를 합산하여 실제센서온도를 연산하는 센서온도연산부(24)와, A sensor temperature calculator 24 for calculating the actual sensor temperature by calculating the sensor voltage detected by the sensor voltage detector 22 to the sensor temperature and adding the contact temperature sensed by the contact temperature sensor 23 and the sensor temperature,

접점온도센서(23)에서 감지된 접점온도가 기준치 이상이면 온도콘트롤러(20) 내부가 과온상태인것으로 판단하고 경보동작을 실행하는 제어부(25)를 설치하여 구성한 것을 특징으로 한다.
And a controller 25 for determining that the inside of the temperature controller 20 is in an overtemperature state and performing an alarm operation if the contact temperature sensed by the contact temperature sensor 23 is equal to or higher than a reference value.

본 발명에 의하면, 이화학실험장치의 실험공간 온도를 감지하는 수단으로 써모커플센서를 이용하면서 써모커플센서의 접점온도를 감지하는 접점온도센서를 이용하여 온도콘트롤러 내부의 온도까지 자동으로 측정하여 온도콘트롤러가 과온 상태일때 경보하여 온도콘트롤러의 과온에 의한 파손을 예방할 수 있음은 물론 별도의 온도감지센서를 온도콘트롤러 내부에 더 설치하지 않아도 되도록하는 효과를 기대할 수 있다.
According to the present invention, by using a thermocouple sensor as a means for sensing an experimental space temperature of a physics laboratory device, a contact temperature sensor for sensing the contact temperature of the thermocouple sensor is automatically used to measure the temperature inside the temperature controller, It is possible to prevent breakage due to over-temperature of the temperature controller and to prevent an additional temperature sensor from being further installed inside the temperature controller.

도 1 은 종래 온도콘트롤장치를 보인 도면.
도 2 는 본 발명의 온도콘트롤러 과온 경보장치를 보인 도면.
도 3 은 본 발명의 제어과정을 보인 플로우챠트.1 is a view showing a conventional temperature control device.
2 is a view showing a temperature controller overheat alarm apparatus of the present invention.
3 is a flow chart showing the control process of the present invention.

이하, 첨부된 도면 도 2 와 도 3 을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described with reference to FIGS. 2 and 3.

상기 도면에 의하면, 본 발명은,According to the above drawings,

이화학실험장치(1) 내의 실험공간에 써모커플센서(10)를 설치하고, 써모커플센서(10)의 리드선(11)을 온도콘트롤러(20) 내부의 PCB기판 접점(21)에 연결하며,The thermocouple sensor 10 is installed in the laboratory space of the physicochemical experiment apparatus 1 and the lead wire 11 of the thermocouple sensor 10 is connected to the PCB substrate contact 21 inside the temperature controller 20,

온도콘트롤러(20)에는 In the temperature controller 20,

접점(21)의 온도를 감지하는 접점온도센서(23)와, A contact temperature sensor 23 for sensing the temperature of the contact 21,

써모커플센서(10)의 센서전압을 검출하는 센서전압검출부(22)와, A sensor voltage detecting section 22 for detecting the sensor voltage of the thermocouple sensor 10,

센서전압검출부(22)에서 검출된 센서전압을 센서온도로 산출 한 후 접점온도센서(23)에서 감지된 접점온도와 센서온도를 합산하여 실제센서온도를 연산하는 센서온도연산부(24)와, A sensor temperature calculator 24 for calculating the actual sensor temperature by calculating the sensor voltage detected by the sensor voltage detector 22 to the sensor temperature and adding the contact temperature sensed by the contact temperature sensor 23 and the sensor temperature,

접점온도센서(23)에서 감지된 접점온도가 기준치 이상이면 온도콘트롤러(20) 내부가 과온상태인것으로 판단하고 경보동작을 실행하는 제어부(25)를 설치하여 구성한 것을 특징으로 한다.And a controller 25 for determining that the inside of the temperature controller 20 is in an overtemperature state and performing an alarm operation if the contact temperature sensed by the contact temperature sensor 23 is equal to or higher than a reference value.

또한, 온도콘트롤러(20)에는 Further, the temperature controller 20

제어부(25)의 제어신호에 따라 구동하여 실험공간을 가열하는 히터(26)와;A heater 26 driven according to a control signal of the control unit 25 to heat an experimental space;

써모커플센서(10)에 의해 감지된 실험공간 온도(실제센서온도)와 접점온도센서(23)에서 감지된 온도콘트롤러(20) 내부온도를 표시하는 표시부(27)와;A display unit 27 for displaying an experimental space temperature (actual sensor temperature) sensed by the thermocouple sensor 10 and an internal temperature of the temperature controller 20 sensed by the contact temperature sensor 23;

제어부(25)의 경보동작시 부저음을 출력하는 부저부(28); 가 더 구성된다.A buzzer unit 28 for outputting a buzzer sound during an alarm operation of the control unit 25; .

이와같이 구성된 본 발명의 동작을 설명하면 다음과 같다.Hereinafter, the operation of the present invention will be described.

본 발명에 적용되는 써모커플센서(10)는 서로 다른 두 종류의 금속도체에 폐회로가 형성되도록 결합하고 두 결합 사이에 온도차이를 유지하면 폐회로 내에 전압차가 발생하는 제백효과 이론을 이용한 센서이다.The thermocouple sensor 10 applied to the present invention is a sensor using a whitening effect theory in which a closed circuit is formed in two different kinds of metal conductors and a voltage difference is generated in a closed circuit when a temperature difference between two bonds is maintained.

따라서, 센서온도와 접점온도를 비교하여 실제온도를 검출한다.Therefore, the actual temperature is detected by comparing the sensor temperature and the contact temperature.

즉, 본 발명과 같이 이화학실험장치(1) 내의 실험공간에 써모커플센서(10)를 설치하고, 써모커플센서(10)의 리드선(11)을 온도콘트롤러(20) 내부의 PCB기판 접점(21)에 연결하면, 써모커플센서(10)에서 감지된 센서온도와 접점(21)의 온도를 비교하여 실제온도, 즉, 실험공간 내 온도를 검출하는 것이다.That is, the thermocouple sensor 10 is installed in the laboratory space of the physicochemical experiment apparatus 1 as in the present invention, and the lead wire 11 of the thermocouple sensor 10 is connected to the PCB substrate contact 21 in the temperature controller 20 The temperature of the contact point 21 is compared with the temperature of the sensor sensed by the thermocouple sensor 10 to detect the actual temperature, that is, the temperature in the test space.

써모커플센서(10)의 2개의 리드선(11)에서 발생하는 전압을 센서전압검출부(22)가 검출하여 센서온도연산부(24)로 출력하면, 센서온도연산부(24)는 검출되는 전압에 비례하는 센서온도를 산출한다.The sensor voltage detector 22 detects the voltage generated by the two leads 11 of the thermocouple sensor 10 and outputs the voltage to the sensor temperature calculator 24 so that the sensor temperature calculator 24 calculates The sensor temperature is calculated.

한편, 접점온도센서(23)는 리드선(11)이 연결되어 있는 온도콘트롤러(20) 내 PCB 접점(21)의 온도를 감지하여 센서온도연산부(24)로 출력하고, 센서온도연산부(24)는 입력되는 접점온도와 앞서 산출된 센서온도를 합산하여 실제센서온도 즉, 실험공간온도를 연산하여 제어부(25)로 출력하는 것이다.The contact temperature sensor 23 senses the temperature of the PCB contact 21 in the temperature controller 20 to which the lead wire 11 is connected and outputs the sensed temperature to the sensor temperature calculator 24. The sensor temperature calculator 24 Calculates the actual sensor temperature, that is, the experimental space temperature, by summing the input contact temperature and the previously calculated sensor temperature, and outputs the calculated sensor temperature to the controller 25.

제어부(25)는 센서온도연산부(24)에서 출력된 실제센서온도가 사용자가 설정한 온도에 부합되는지를 판단한 후 그에 따라 히터(26)를 구동시키므로서 실험공간이 설정온도로 유지되는 것이다.The controller 25 determines whether the actual sensor temperature output from the sensor temperature calculator 24 matches the temperature set by the user and drives the heater 26 accordingly to maintain the experimental space at the set temperature.

상기 설명과 같이 써모커플센서(10)는 접점(21)의 온도상태와 써모커플센서(10)가 설치되어 있는 실험공간 내의 온도상태에 따라 2개의 리드선(11)에 다른 전압이 출력되므로 실제센서온도를 연산하기 위하여 반드시 접점온도를 측정해야하고, 센서온도와 접점온도를 합산하여 실제센서온도를 연산한다.As described above, since the thermocouple sensor 10 outputs different voltages to the two lead wires 11 according to the temperature state of the contact point 21 and the temperature state in the experimental space in which the thermocouple sensor 10 is installed, In order to calculate the temperature, the contact temperature must be measured, and the actual sensor temperature is calculated by summing the sensor temperature and the contact temperature.

예를들어, 실험공간의 실제온도가 50도라고 가정할때 접점온도가 0도일때보다 10도일때 써모커플센서(10)는 리드선으로 더 낮은 전압이 출력되는 것이다.For example, assuming that the actual temperature of the test space is 50 degrees, the thermocouple sensor 10 outputs a lower voltage to the lead wire when it is 10 degrees than when the contact temperature is 0 degree.

한편, 본 발명에서는 추가적으로 온도센서를 온도콘트롤러(20) 내부에 더 설치하지 않고서도 온도콘트롤러(20)의 온도를 측정할 수 있다.Meanwhile, in the present invention, the temperature of the temperature controller 20 can be measured without additionally providing a temperature sensor inside the temperature controller 20.

즉, 써모커플센서(10)의 실제센서온도를 측정하기 위해 필요한 접점온도센서(23)의 감지정보를 이용하여 온도콘트롤러(20) 내부 온도를 판단하는 것이며, 그 판단결과 접점온도센서(23)에서 감지된 온도가 기준값 이상이면 현재 온도콘트롤러(20)가 과온상태인 것으로 판단하고 제어부(25)가 부저부(28)를 작동시켜 경보음이 출력되도록 하고, 이와더불어 히터(26)를 정지시켜 더이상 온도콘트롤러가 과열되지 않도록 하는 것이다.
That is, the internal temperature of the temperature controller 20 is determined using the sensing information of the contact temperature sensor 23 necessary for measuring the actual sensor temperature of the thermocouple sensor 10. As a result of the determination, The control unit 25 determines that the current temperature controller 20 is in an overtemperature state and activates the buzzer unit 28 to output an alarm sound and stops the heater 26 So that the temperature controller is no longer overheated.

1: 이화학실험장치, 10: 써모커플센서,
11: 리드선, 20: 온도콘트롤러,
21: 접점, 22: 센서전압검출부,
23: 접점온도센서, 24: 센서온도 연산부,
25: 제어부, 26: 히터,
27: 표시부, 28: 부저부,1: physics laboratory device, 10: thermocouple sensor,
11: lead wire, 20: temperature controller,
21: contact, 22: sensor voltage detector,
23: contact temperature sensor, 24: sensor temperature calculation unit,
25: control unit, 26: heater,
27: display portion, 28: buzzer portion,

Claims (1)

이화학실험장치(1) 내의 실험공간에 써모커플센서(10)를 설치하고, 써모커플센서(10)의 리드선(11)을 온도콘트롤러(20) 내부의 PCB기판 접점(21)에 연결하며,
온도콘트롤러(20)에는
접점(21)의 온도를 감지하는 접점온도센서(23)와,
써모커플센서(10)의 센서전압을 검출하는 센서전압검출부(22)와,
센서전압검출부(22)에서 검출된 센서전압을 센서온도로 산출 한 후 접점온도센서(23)에서 감지된 접점온도와 센서온도를 합산하여 실제센서온도를 연산하는 센서온도연산부(24)와,
접점온도센서(23)에서 감지된 접점온도가 기준치 이상이면 온도콘트롤러(20) 내부가 과온상태인것으로 판단하고 경보동작을 실행하는 제어부(25)를 설치하여 구성한 것을 특징으로 하는 이화학실험장치의 온도콘트롤러 과온 경보장치.The thermocouple sensor 10 is installed in the laboratory space of the physicochemical experiment apparatus 1 and the lead wire 11 of the thermocouple sensor 10 is connected to the PCB substrate contact 21 inside the temperature controller 20,
In the temperature controller 20,
A contact temperature sensor 23 for sensing the temperature of the contact 21,
A sensor voltage detecting section 22 for detecting the sensor voltage of the thermocouple sensor 10,
A sensor temperature calculator 24 for calculating the actual sensor temperature by calculating the sensor voltage detected by the sensor voltage detector 22 to the sensor temperature and adding the contact temperature sensed by the contact temperature sensor 23 and the sensor temperature,
And a control unit (25) for determining that the inside of the temperature controller (20) is in an overtemperature state and executing an alarm operation if the contact temperature detected by the contact temperature sensor (23) Controller over temperature alarm.
KR1020150012444A 2015-01-27 2015-01-27 Over heat alarm device of temperature controller KR101517791B1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930023803A (en) * 1992-05-28 1993-12-21 정용문 Anomaly Detection Circuit of Temperature Sensor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930023803A (en) * 1992-05-28 1993-12-21 정용문 Anomaly Detection Circuit of Temperature Sensor

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